Question: Help on these 3 Students use a green laser pointer and a grating to produce an interference pattern on a ruler, as shown below: 11

Help on these 3

Students use a green laser pointer and a grating to produce an interference pattern on a ruler, as shown below: 11 13 14 10 15 The ruler is 30.0 cm from the grating and the wavelength of the green laser light is 557 nm, pointed at the '0 cm' mark of the ruler. The students analyze the observations and calculate the distance between slits. 28. Does this experiment support the wave or the particle nature of light? Explain. (1) Your answer: 29. Determine the distance between the slits on the diffraction grating using the students results. (3) Your answer: 30. Predict what would happen if the green laser was replaced with a red laser. (i.e.- Would you the bright spots move closer together or farther apart? How do you know?) (1)

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